Slice casting machine for BOPP (biaxially-oriented polypropylene) film production

Abstract

The utility model provides a strip casting machine for BOPP (biaxially-oriented polypropylene) film production, which belongs to the technical field of BOPP film production equipment and comprises a base, a strip casting device, a strip casting device and a strip casting device. The casting piece auxiliary equipment is fixed at the top of the base; the device is characterized by comprising two groups of connecting plates which are symmetrically arranged, each group comprises two connecting plates, and the two groups of connecting plates are symmetrically fixed at the two ends of the casting piece auxiliary equipment; the number of the lifting hydraulic rods is two, each lifting hydraulic rod is symmetrically provided with two, and the two lifting hydraulic rods are fixed to the tops of the two connecting plates correspondingly and used for conveniently adjusting the processing thickness of the BOPP film; the number of the connecting columns is two, two connecting columns are symmetrically arranged in each set, and the two sets of connecting columns are fixed to the output ends of the tops of the two sets of lifting hydraulic rods correspondingly. According to the utility model, the problem that the overall limitation of the device is large as the specification of the casting piece roller and the thickness of the BOPP film cannot be adjusted according to on-site requirements due to deadly limitation on the specification of the casting piece roller and the thickness of the formed BOPP film is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of BOPP film production equipment, and specifically relates to a sheet casting machine used for BOPP film production. Background Art

[0002] BOPP film is biaxially oriented polypropylene film. Its production is to first make the melt of high molecular weight polypropylene into a sheet or thick film through a narrow and long die, and then stretch it in two perpendicular directions (longitudinal and transverse) at a certain temperature and set speed in a special stretching machine at the same time or in steps, and then undergo appropriate cooling or heat treatment or special processing (such as corona, coating, etc.) to form a film. However, the existing technology has strict restrictions on the size of the casting machine, the size of the casting roller, and the thickness of the BOPP film after forming, and it is impossible to adjust the size of the casting roller of the casting machine and the thickness of the BOPP film according to demand.

[0003] Application number "CN201720424710.6" records "a casting machine for BOPP film production, comprising a frame, a chilled roller, an air outlet knife, a dehydration roller and a water tank, wherein a pair of first mounting plates arranged in parallel are fixedly connected to the upper part of the frame, two chilled rollers installed up and down are arranged in the first mounting plate, a pair of connecting frames are arranged in the middle of the surface of the first mounting plate, and an air outlet knife is installed at the stop end of the connecting frame; water on the BOPP film is absorbed by the first water-absorbing sponge layer and the second water-absorbing sponge layer, so that the dehydration effect of the BOPP film is obvious."

[0004] The above patent is based on a casting machine for BOPP film production, which improves the tensile strength and quality of the BOPP film. Due to the squeezing of the first water-absorbing sponge layer by the upper part of the water storage tank, the water in the first water-absorbing sponge layer is squeezed out and enters the water storage tank. The rotating roller passes through the area between the arc-shaped squeezing plate and the water receiving tank, and also squeezes water out of the second water-absorbing sponge layer, thereby ensuring the water absorption effect of the first water-absorbing sponge layer and the second water-absorbing sponge layer, and facilitating the treatment of wastewater and improving work efficiency.

[0005] The above patent improves the tensile strength and quality of the BOPP film. Due to the squeezing of the first water-absorbing sponge layer by the upper part of the water storage tank, the water in the first water-absorbing sponge layer is squeezed out and enters the water storage tank. The rotating roller passes through the area between the arc-shaped squeezing plate and the water receiving tank, and similarly squeezes water out of the second water-absorbing sponge layer. Therefore, the water absorption effect of the first water-absorbing sponge layer and the second water-absorbing sponge layer is ensured, and it is convenient to treat wastewater and improve work efficiency. However, the above device has strict restrictions on the model specifications of the casting roller and the thickness of the BOPP film. It is impossible to adjust the specifications of the casting roller and the thickness of the BOPP film after molding according to on-site needs, resulting in greater overall limitations of the device. Utility Model Content

[0006] The utility model aims to provide a casting machine for BOPP film production, aiming to solve the problem in the prior art that the model specifications of the casting roller and the thickness of the BOPP film are relatively rigidly restricted, and the model specifications of the casting roller and the thickness of the BOPP film after molding cannot be adjusted according to on-site needs, resulting in greater limitations on the overall device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A sheet casting machine for BOPP film production, comprising:

[0009] Base;

[0010] A casting auxiliary device, fixed to the top of the base;

[0011] The invention is characterized by comprising:

[0012] Two groups of connecting plates are symmetrically arranged, each group is symmetrically arranged with two connecting plates, and the two groups of connecting plates are symmetrically fixed at two ends of the casting auxiliary equipment;

[0013] There are two groups of lifting hydraulic rods, each group is symmetrically provided with two lifting hydraulic rods, and the two groups of lifting hydraulic rods are respectively fixed on the top of the two groups of connecting plates, which are used to facilitate the adjustment of the thickness of the BOPP film processing;

[0014] There are two groups of connecting columns, each group is symmetrically provided with two connecting columns, and the two groups of connecting columns are respectively fixed to the top output ends of the two groups of lifting hydraulic rods;

[0015] An L-shaped support plate fixed between the two groups of connecting columns; and

[0016] A replacement mechanism is arranged on the L-shaped support plate and is used to facilitate the replacement of the model and specifications of the casting roller.

[0017] As a preferred solution of the utility model, the replacement mechanism further includes:

[0018] A driving assembly, which is arranged on the L-shaped supporting plate;

[0019] A docking assembly, which is disposed on the L-shaped support plate and cooperates with the driving assembly; and

[0020] A limiting assembly is arranged on the L-shaped supporting plate and cooperates with the driving assembly to prevent the casting roll from falling.

[0021] As a preferred solution of the utility model, the driving assembly includes a rotating device and a disc, the rotating device is fixed to the outer wall of the L-shaped support plate, and the output end of the rotating device passes through the side wall of the L-shaped support plate, and the disc is fixed to the end of the outer wall of the rotating device.

[0022] As a preferred solution of the utility model, the docking assembly includes a casting roller body, a protrusion and a groove. The casting roller body is slidably arranged on the circumferential surface of the output end of the rotating device. There are four protrusions, which are fixed to the end of the casting roller body in a circular array. There are four grooves, which are opened on the side wall of the disc in a circular array, and the four protrusions and grooves are engaged and matched with each other.

[0023] As a preferred solution of the utility model, the limiting assembly includes an L-shaped fixing plate, a cylinder and a limiting door, the L-shaped fixing plate is fixed to the end of the L-shaped support plate, the limiting door is connected to the bottom of the L-shaped fixing plate through a hinge, one end of the cylinder is movably provided on the inner wall of the hook at the bottom of the L-shaped fixing plate, and the output end of the cylinder is fixed to the side wall of the limiting door.

[0024] As a preferred solution of the utility model, the limiting hole on the limiting door cooperates with the output end of the rotating device to prevent the casting roller body from falling.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. By symmetrically fixing two sets of connecting plates at both ends of the casting auxiliary equipment, two sets of lifting hydraulic rods are respectively fixed on the top of the two sets of connecting plates, two sets of connecting columns are respectively fixed on the output ends of the top of the two sets of lifting hydraulic rods, and the L-shaped support plate is fixed between the two sets of connecting columns, it is convenient to adjust the distance between the two casting rollers, and then it is convenient to adjust the thickness of the BOPP film processing, effectively reducing the overall limitations of the device.

[0027] 2. The disc is fixed to the end of the outer wall of the rotating equipment, the casting roller body is slidably arranged on the circumferential surface of the output end of the rotating equipment, four protrusions are fixed to the end of the casting roller body in a circumferential array, four grooves are opened on the side wall of the disc in a circumferential array, and the four protrusions and grooves are engaged with each other, the L-shaped fixing plate is fixed to the end of the L-shaped supporting plate, the limit door is connected to the bottom of the L-shaped fixing plate through a hinge, one end of the cylinder is movably arranged on the inner wall of the hook at the bottom of the L-shaped fixing plate, and the output end of the cylinder is fixed to the side wall of the limit door, which is convenient for replacing the model and specification of the casting roller and improving the overall working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a first-view stereoscopic diagram of a sheet casting machine for BOPP film production according to the utility model;

[0030] Figure 2 This is a first-view stereoscopic cross-sectional view of a sheet casting machine for BOPP film production according to the utility model;

[0031] Figure 3 This is a first-perspective three-dimensional exploded view of a sheet casting machine for BOPP film production according to the utility model;

[0032] Figure 4 This is a second perspective stereogram of a sheet casting machine for BOPP film production according to the utility model;

[0033] Figure 5 This is a second-angle stereoscopic exploded view of a sheet casting machine for BOPP film production according to the utility model.

[0034] In the figure: 1. base; 2. casting auxiliary equipment; 3. connecting plate; 4. lifting hydraulic rod; 5. connecting column; 6. L-shaped support plate; 7. rotating equipment; 8. disc; 9. casting roller body; 10. protrusion; 11. L-shaped fixing plate; 12. cylinder; 13. limit door; 14. groove. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Example

[0037] See also Figure 1-5 , the utility model provides the following technical solutions:

[0038] A sheet casting machine for BOPP film production, which is composed of a base 1, a sheet casting auxiliary device 2, a connecting plate 3, a lifting hydraulic rod 4, a connecting column 5, an L-shaped support plate 6 and a replacement mechanism, which is specifically described as follows:

[0039] See also Figure 1 , base 1;

[0040] See also Figure 2 , the casting auxiliary equipment 2 is fixed on the top of the base 1;

[0041] See also Figure 3 , two groups of connecting plates 3 are symmetrically provided, each group is symmetrically provided with two, and the two groups of connecting plates 3 are symmetrically fixed at both ends of the casting auxiliary equipment 2;

[0042] See also Figure 4There are two groups of lifting hydraulic rods 4, each group is symmetrically provided with two, and the two groups of lifting hydraulic rods 4 are respectively fixed on the top of the two groups of connecting plates 3, which are used to facilitate the adjustment of the thickness of the BOPP film processing;

[0043] See also Figure 5 There are two groups of connecting columns 5, each group is symmetrically provided with two, and the two groups of connecting columns 5 are respectively fixed to the top output ends of the two groups of lifting hydraulic rods 4;

[0044] See also Figure 3 , the L-shaped support plate 6 is fixed between the two groups of connecting columns 5; and

[0045] See also Figure 5 The replacement mechanism is arranged on the L-shaped support plate 6, which is used to facilitate the replacement of the model and specification of the casting roll. Specifically, the replacement mechanism also includes:

[0046] See also Figure 3 The driving assembly is arranged on the L-shaped support plate 6. Specifically, the driving assembly includes a rotating device 7 and a disc 8. The rotating device 7 is fixed to the outer wall of the L-shaped support plate 6, and the output end of the rotating device 7 passes through the side wall of the L-shaped support plate 6. The disc 8 is fixed to the end of the outer wall of the rotating device 7;

[0047] See also Figure 5 , a docking assembly is arranged on the L-shaped support plate 6 and cooperates with the driving assembly for use. Specifically, the docking assembly includes a casting roller body 9, a protrusion 10 and a groove 14. The casting roller body 9 is slidably arranged on the circumferential surface of the output end of the rotating device 7. There are four protrusions 10, which are fixed to the end of the casting roller body 9 in a circumferential array. There are four grooves 14, which are opened on the side wall of the disc 8 in a circumferential array, and the four protrusions 10 and the grooves 14 are engaged with each other; and

[0048] See also Figure 3 The limiting component is arranged on the L-shaped support plate 6 and cooperates with the driving component to prevent the casting roller from falling. Specifically, the limiting component includes an L-shaped fixing plate 11, a cylinder 12 and a limiting door 13. The L-shaped fixing plate 11 is fixed to the end of the L-shaped support plate 6. The limiting door 13 is arranged at the bottom of the L-shaped fixing plate 11 through a hinge. One end of the cylinder 12 is movably arranged on the inner wall of the hook at the bottom of the L-shaped fixing plate 11, and the output end of the cylinder 12 is fixed to the side wall of the limiting door 13.

[0049] See also Figure 3 The limiting hole on the limiting door 13 cooperates with the output end of the rotating device 7 to prevent the casting roller body 9 from falling.

[0050] In this embodiment: by fixing the disc 8 to the end of the outer wall of the rotating device 7, the casting roller body 9 is slidably arranged on the circumferential surface of the output end of the rotating device 7, four protrusions 10 are fixed to the end of the casting roller body 9 in a circumferential array, and four grooves 14 are opened on the side wall of the disc 8 in a circumferential array, and the four protrusions 10 and the grooves 14 are engaged with each other, the L-shaped fixing plate 11 is fixed to the end of the L-shaped supporting plate 6, the limit door 13 is arranged at the bottom of the L-shaped fixing plate 11 through a hinge transfer, one end of the cylinder 12 is movably arranged on the inner wall of the hook at the bottom of the L-shaped fixing plate 11, and the output end of the cylinder 12 is fixed to the side wall of the limit door 13, which is convenient for replacing the model and specification of the casting roller and improving the overall working efficiency of the device.

[0051] By symmetrically fixing two sets of connecting plates 3 at both ends of the casting auxiliary equipment 2, two sets of lifting hydraulic rods 4 are respectively fixed to the top of the two sets of connecting plates 3, two sets of connecting columns 5 are respectively fixed to the top output ends of the two sets of lifting hydraulic rods 4, and the L-shaped support plate 6 is fixed between the two sets of connecting columns 5, it is convenient to adjust the distance between the two casting rollers, and then to adjust the thickness of the BOPP film processing, thereby effectively reducing the overall limitations of the device.

[0052] The working principle and use process of the utility model are as follows: when it is necessary to replace the model and specification of the casting roller body 9, the limit door 13 can be controlled to move by the cylinder 12, and the limit door 13 is arranged at the bottom of the L-shaped support plate 6 through a hinge transfer, so that the casting roller body 9 can be removed from the outer wall of the output end of the rotating device 7, and then a new model and specification of the casting roller body 9 can be replaced, and the casting roller body 9 can be positioned by the engagement of the protrusion 10 and the groove 14, and finally limited by the limit door 13, and through the cooperation of the connecting plate 3, the lifting hydraulic rod 4 and the connecting column 5, the distance between the casting roller body 9 and the casting auxiliary equipment 2 can be effectively controlled, so as to facilitate the adjustment of the thickness of the BOPP film processing.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sheet casting machine for BOPP film production, comprising: Base (1); A casting auxiliary device (2) is fixed on the top of the base (1); The invention is characterized by comprising: The connecting plates (3) are symmetrically provided in two groups, each group being symmetrically provided with two connecting plates, and the two groups of connecting plates (3) are symmetrically fixed at two ends of the casting auxiliary equipment (2); There are two groups of lifting hydraulic rods (4), each group is symmetrically provided with two lifting hydraulic rods, and the two groups of lifting hydraulic rods (4) are respectively fixed to the tops of the two groups of connecting plates (3), which are used to facilitate the adjustment of the thickness of the BOPP film processing; The connecting columns (5) are provided in two groups, each group being symmetrically provided with two connecting columns (5), and the two groups of connecting columns (5) are respectively fixed to the top output ends of the two groups of lifting hydraulic rods (4); An L-shaped support plate (6) fixed between the two groups of connecting columns (5); and A replacement mechanism is arranged on the L-shaped support plate (6) and is used to facilitate the replacement of the model and specification of the casting roller.

2. A casting machine for BOPP film production according to claim 1, characterized in that: The replacement mechanism further comprises: A driving assembly, which is arranged on the L-shaped supporting plate (6); a docking assembly, which is arranged on the L-shaped support plate (6) and cooperates with the driving assembly; and A limiting component is arranged on the L-shaped support plate (6) and cooperates with the driving component to prevent the casting roller from falling.

3. A casting machine for BOPP film production according to claim 2, characterized in that: The driving assembly comprises a rotating device (7) and a disc (8); the rotating device (7) is fixed to the outer wall of the L-shaped support plate (6), and the output end of the rotating device (7) passes through the side wall of the L-shaped support plate (6); the disc (8) is fixed to the end of the outer wall of the rotating device (7).

4. A casting machine for BOPP film production according to claim 3, characterized in that: The docking assembly comprises a casting roller body (9), a protrusion (10) and a groove (14); the casting roller body (9) is slidably arranged on the circumferential surface of the output end of the rotating device (7); there are four protrusions (10), which are fixed to the end of the casting roller body (9) in a circumferential array; there are four grooves (14), which are opened on the side wall of the disc (8) in a circumferential array; and the four protrusions (10) and the grooves (14) are engaged and matched with each other.

5. A casting machine for BOPP film production according to claim 4, characterized in that: The limiting assembly comprises an L-shaped fixing plate (11), a cylinder (12) and a limiting door (13); the L-shaped fixing plate (11) is fixed to the end of the L-shaped support plate (6); the limiting door (13) is arranged at the bottom of the L-shaped fixing plate (11) through a hinge; one end of the cylinder (12) is movably arranged on the inner wall of the hook at the bottom of the L-shaped fixing plate (11); and the output end of the cylinder (12) is fixed to the side wall of the limiting door (13).

6. A casting machine for BOPP film production according to claim 5, characterized in that: The limiting hole on the limiting door (13) cooperates with the output end of the rotating device (7) to prevent the casting roller body (9) from falling.

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